The unit working parameter equations and hydraulic efficiencyparameter equations for geometrically similar water turbomachinery are derived.
根据水涡轮机械的工作原理，对几何相似的水涡轮机械，导出了其单位工作参数所必须满足的方程。
2
The foundation brake rigging transmission efficiency is a significant parameter for the brake system design.
基础制动装置的传动效率是制动系统设计的重要参数。
3
The application result demonstrates that this system solves the question of drawing technics parameter optimization and advances quality and efficiency of cast iron production.